Water seal tank for pure water storage tank

Abstract

The utility model discloses a water seal box for pure water storage tank, include: support, seal the box, be provided with sealed baffle in it to divide sealed box into upper box body and lower box body, be provided with first pure water and second pure water respectively in upper box body, lower box body, the air inlet pipeline, one end of its one end stretches into first pure water liquid level below, the other end stretches out upper box body, first pipeline, one end of its one end is connected in upper box body, and the other end is connected with nitrogen gas pipeline, second pipeline, one end of its one end is connected in upper box body, and the other end is connected with the overflow port of pure water storage tank, at least one fourth pipeline, fourth pipeline is connected in sealed baffle and the top end, bottom of fourth pipeline are located respectively in the inner chamber of upper box body, the second pure water liquid level below of lower box body, the discharge pipeline, one end of its one end stretches into and is connected in lower box body, and the other end stretches out lower box body outside, and one end of discharge pipeline is higher than the bottom of fourth pipeline. The utility model avoids that outside air enters pure water storage tank, and the excess pressure in pure water storage tank can carry out positive pressure discharge.

Description

Technical Field

[0001] This utility model relates to the field of pure water storage technology, and in particular to a water seal box for pure water storage tanks. Background Technology

[0002] Pure water refers to water with very high chemical purity, obtained through electrodialysis, ion exchange, reverse osmosis, distillation, and other appropriate processing methods. In chemical synthesis processes, pure water is used as a solvent, reaction medium, and detergent. Pure water provides an impurity-free environment, preventing impurities from interfering with chemical reactions and ensuring the purity and quality of the synthesized products. Pure water is generally stored in pure water tanks. When needed, it is supplied to the point of use through a water supply pipe and pump at the bottom of the tank. This creates a negative pressure inside the tank. Under negative pressure, air containing particulate matter and impurities is drawn into the pure water tank at the negative pressure inlet. This can also potentially allow mosquitoes to enter the tank, causing water pollution and affecting water quality. Under positive pressure, the overflow outlet exposed to the air can also become contaminated, and this contamination is carried into the pure water tank under negative pressure. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water seal box for pure water storage tanks.

[0004] To achieve the above objectives, the technical solution provided by an embodiment of this utility model is as follows:

[0005] A water seal tank for a pure water storage tank, comprising:

[0006] A sealed box, wherein a sealing partition is provided inside the sealed box to divide the sealed box into an upper box and a lower box, and a first pure water and a second pure water are respectively provided in the upper box and the lower box;

[0007] An air intake pipe, one end of which extends below the first pure water liquid level in the upper housing, and the other end extends out of the top of the upper housing;

[0008] The first pipe has one end connected to the inner cavity of the upper housing and the other end connected to a nitrogen pipe.

[0009] The second pipe has one end connected to the inner cavity of the upper housing and the other end connected to the third pipe;

[0010] At least one fourth pipe, the fourth pipe being connected to the sealing partition and the top and bottom ends of the fourth pipe being located below the second pure water liquid level in the inner cavity of the upper box and the lower box, respectively, with the top end of the fourth pipe being higher than one end of the air inlet pipe;

[0011] The discharge pipe has one end extending into and communicating with the inner cavity of the lower housing, and the other end extending out of the lower housing. One end of the discharge pipe is higher than the bottom end of the fourth pipe.

[0012] As a further improvement of this utility model, the inner cavity of the upper box is connected to a water supply pipe, and a float valve is provided on the inner side wall of the upper box.

[0013] As a further improvement of this utility model, the first pure water liquid level is flush with the top of the fourth pipe.

[0014] As a further improvement of this utility model, the second pure water level is flush with one end of the discharge pipe.

[0015] As a further improvement of this utility model, a fifth pipe is connected to the top of the upper housing, one end of the fifth pipe is connected to the inner cavity of the upper housing, and a pressure display is connected to the fifth pipe.

[0016] As a further improvement of this utility model, the pressure display is a digital pressure gauge or a digital pressure sensor.

[0017] As a further improvement of this utility model, the bottom of the lower housing is connected to a drain pipe, and the drain pipe is equipped with a drain valve.

[0018] As a further improvement of this utility model, a filter screen is provided inside the air intake pipe.

[0019] The beneficial effects of this utility model are:

[0020] This invention can fill the upper chamber with nitrogen to isolate it from air. At the same time, the combination of the first pure water, the air inlet pipe, and the fourth pipe can form a water seal to prevent outside air from entering the upper chamber through the air inlet pipe. This double protection prevents outside air containing particulate matter and impurities from entering the pure water storage tank, ensuring the water quality inside the pure water storage tank. In addition, the combination of the second pure water, the fourth pipe, and the discharge pipe acts as a water filter and a one-way valve, preventing air from being drawn into the pure water storage tank through the discharge pipe when there is negative pressure, further ensuring the water quality inside the pure water storage tank. When there is positive pressure inside the pure water storage tank, the excess pressure can be discharged positively along the fourth pipe and the discharge pipe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0023] In the diagram: 2. Sealed box, 21. Upper box, 22. Lower box, 23. First pure water, 24. Second pure water, 31. Air inlet pipe, 311. Filter screen, 32. First pipe, 33. Second pipe, 34. Third pipe, 35. Fourth pipe, 36. Discharge pipe, 37. Nitrogen pipe, 371. Nitrogen, 38. Water replenishment pipe, 39. Fifth pipe, 40. Drain pipe, 4. Sealing partition, 6. Float valve, 7. Digital pressure gauge, 8. Drain valve. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] Please see Figure 1 This application discloses a water seal box for a pure water storage tank, including a sealed box 2, an air inlet pipe 31, a first pipe 32, a second pipe 33, a third pipe 34, at least one fourth pipe 35, an outlet pipe 36, and a nitrogen pipe 37. A sealing partition 4 is provided inside the sealed box 2 to divide it into an upper box 21 and a lower box 22. Both the upper box 21 and the lower box 22 have internal cavities. First pure water 23 and second pure water 24 are respectively disposed inside the upper box 21 and the lower box 22. There is a gap between the liquid level of the first pure water 23 and the inner top wall of the upper box 21, and a gap between the liquid level of the second pure water 24 and the sealing partition 4. One end of the air inlet pipe 31 extends below the liquid level of the first pure water 23 in the upper box 21, and the other end extends out of the top of the upper box 21. One end of the first pipe 32 is connected to the internal cavity of the upper box 21, and the other end is connected to the nitrogen pipe 37. One end of the second pipe 33 is connected to the inner cavity of the upper housing 21, and the other end is connected to the third pipe 34, which is used to connect to the overflow port of the pure water storage tank. The fourth pipe 35 is connected to the sealing partition 4, and the top and bottom ends of the fourth pipe 35 are located below the liquid level of the second pure water 24 in the inner cavity of the upper housing 21 and the lower housing 22, respectively. The top end of the fourth pipe 35 is higher than one end of the air inlet pipe 31. One end of the discharge pipe 36 extends into and is connected to the inner cavity of the lower housing 22, and the other end extends out of the lower housing 22. One end of the discharge pipe 36 is higher than the bottom end of the fourth pipe 35.

[0026] Nitrogen pipe 37 can be connected to a nitrogen pump to inject nitrogen 371 into the upper part of the inner cavity of the upper chamber 21 through nitrogen pipe 37 and first pipe 32. Since the upper part of the inner cavity of the upper chamber 21 is filled with nitrogen 371, it can isolate air. At the same time, due to the setting of the first pure water 23 in the upper chamber 21 and the end of the air inlet pipe 31 extending below the liquid surface of the first pure water 23 being lower than the top of the fourth pipe 35, a water seal is formed in the air inlet pipe 31 to prevent outside air from entering the upper chamber 21 through the air inlet pipe 31. This double protection prevents outside air containing particulate matter and impurities from entering the second pipe 33 through the air inlet pipe 31 and thus entering the pure water storage tank, ensuring the water quality in the pure water storage tank. Meanwhile, the second pure water 24 in the second chamber 22 and the bottom of the fourth pipe 35 being lower than one end of the discharge pipe 36 serve as water filtration and a one-way valve, preventing air from being drawn into the pure water storage tank through the discharge pipe 36 when there is negative pressure, further ensuring the water quality in the pure water storage tank. When there is positive pressure in the pure water storage tank, the excess pressure can enter the upper chamber 21 and be discharged under positive pressure along the fourth pipe 35 and the discharge pipe 36.

[0027] In this embodiment, the inner cavity of the upper chamber 21 is preferably connected to a water supply pipe 38, and a float valve 6 is provided on the inner side wall of the upper chamber 21. The float valve 6 allows for the injection or cessation of pure water injection into the inner cavity of the upper chamber 21 via the water supply pipe 38, ensuring that the first pure water level 23 in the upper chamber 21 is maintained at a set height, preventing the level from dropping and losing the one-way valve function, while simultaneously maintaining cleanliness through water replenishment. The water supply pipe 38 can be connected to a demineralized water pump, facilitating the injection of pure water into the inner cavity of the upper chamber 21 through the water supply pipe 38.

[0028] Preferably, the liquid level of the first pure water 23 is flush with the top of the fourth pipe 35, so as to facilitate overflow through the fourth pipe 35.

[0029] Preferably, the liquid level of the second pure water 24 is flush with one end of the discharge pipe 36, so as to facilitate overflow drainage through the discharge pipe 36.

[0030] Preferably, a fifth pipe 39 is connected to the top of the upper housing 21. One end of the fifth pipe 39 is connected to the inner cavity of the upper housing 21, and a pressure display is connected to the fifth pipe 39. The pressure inside the sealed box 2 can be observed and displayed in real time through the pressure display, so as to understand the working status of the water seal box in a timely manner. In this embodiment, the pressure display is a digital pressure gauge 7. It is understood that the pressure display is not limited to a digital pressure gauge 7, and can also be a digital pressure sensor.

[0031] In this embodiment, the bottom of the lower tank 22 is preferably connected to a drain pipe 40, and the drain pipe 40 is equipped with a drain valve 8. When the water seal tank is used for a long time, water will accumulate at the bottom of the lower tank 22, which can easily breed bacteria. By opening the drain valve 8, the accumulated water at the bottom of the lower tank 22 can be discharged along the drain pipe 40.

[0032] A filter 311 is preferably installed inside the air intake duct 31 to prevent mosquitoes and ensure air permeability. The filter 311 is a multi-mesh filter, such as a 20-mesh filter.

[0033] To facilitate the placement of the sealing box 2, it can be placed on a bracket. The bracket can be hollow inside to avoid interference with the discharge pipe 36 and the vent pipe 40. The bracket is used to support and position the sealing box 2.

[0034] In use, nitrogen gas is injected into the upper part of the inner cavity of the upper chamber 21 through nitrogen pipe 37 and first pipe 32. Since the upper part of the inner cavity of the upper chamber 21 is filled with nitrogen gas, it can isolate air. At the same time, due to the setting of the first pure water 23 in the upper chamber 21 and the fact that the end of the air inlet pipe 31 extending below the liquid surface of the first pure water 23 is lower than the top of the fourth pipe 35, a water seal is formed in the air inlet pipe 31 to prevent outside air from entering the upper chamber 21 through the air inlet pipe 31. This double protection prevents outside air containing particulate matter and impurities from entering the second pipe 33 through the air inlet pipe 31 and thus entering the pure water storage tank, ensuring the water quality in the pure water storage tank. At the same time, when there is positive pressure in the pure water storage tank, the excess pressure can enter the inner cavity of the upper chamber 21 and then be discharged under positive pressure along the fourth pipe 35 and the discharge pipe 36.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water seal tank for a pure water storage tank, characterized in that, include: A sealed box, wherein a sealing partition is provided inside the sealed box to divide the sealed box into an upper box and a lower box, and a first pure water and a second pure water are respectively provided in the upper box and the lower box. The inner cavity of the upper box is connected to a water supply pipe, and a float valve is provided on the inner side wall of the upper box. An air intake pipe, one end of which extends below the first pure water liquid level in the upper housing, and the other end extends out of the top of the upper housing; The first pipe has one end connected to the inner cavity of the upper housing and the other end connected to a nitrogen pipe. The second pipe has one end connected to the inner cavity of the upper housing and the other end connected to the third pipe; At least one fourth pipe, the fourth pipe being connected to the sealing partition and the top and bottom ends of the fourth pipe being located below the second pure water liquid level in the inner cavity of the upper box and the lower box, respectively, with the top end of the fourth pipe being higher than one end of the air inlet pipe; The discharge pipe has one end extending into and communicating with the inner cavity of the lower housing, and the other end extending out of the lower housing. One end of the discharge pipe is higher than the bottom end of the fourth pipe.

2. The water seal tank for a pure water storage tank according to claim 1, characterized in that, The first pure water level is flush with the top of the fourth pipe.

3. The water seal tank for a pure water storage tank according to claim 1, characterized in that, The second pure water level is flush with one end of the discharge pipe.

4. The water seal tank for a pure water storage tank according to claim 1, characterized in that, The top of the upper housing is connected to a fifth pipe, one end of which is connected to the inner cavity of the upper housing, and a pressure display is connected to the fifth pipe.

5. The water seal tank for a pure water storage tank according to claim 4, characterized in that, The pressure display is a digital pressure gauge or a digital pressure sensor.

6. The water seal tank for a pure water storage tank according to claim 1, characterized in that, The bottom of the lower housing is connected to a drain pipe, and the drain pipe is equipped with a drain valve.

7. The water seal tank for a pure water storage tank according to claim 1, characterized in that, A filter screen is installed inside the air intake pipe.

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